>I'll try to change the ownership to the /etc/oracle file, I'll assign it >oracle:oinstall ownership.>But I tryed to launch the script as root user and always it showed me >permission deined;>this is the bad surprise you was talking about?

On other Unixes you would simply issue
su -c oracle <oracle_home>/bin/dbstart.

Not sure why
- you use rsh
- you hardcode the oracle home directory, which is supposed to be read
from the oratab file.